First, some terms. This feels necessary, otherwise, we're going to just talk past each other.
Mastodon is software, a network of services running compatible software, and the people using those services.
Kamala Harris is a person. She could be on maston, if she wants, but I can't imagine why she would want to right now.
Harris for President is a legal entity that exists to facilitate her presidential election campaign. That's what this thread is about.